India Languages, asked by srikanthchiku9978, 10 months ago

சுருக்குக


"(ii) " (b^2+3b-28)/(b^2+4b+4)÷(b^2-49)/(b^2-5b-14)

Answers

Answered by vinayraghav0007
1

Answer:

please write in Hindi or English language to get correct answer of this question.....................................

Answered by steffiaspinno
4

சுருக்குக \begin{aligned}&\frac{b^{2}+3 b-28}{b^{2}+4 b+4} \div \frac{b^{2}-49}{b^{2}-5 b-14}\\\end{aligned}  

தீர்வு:  

கொடுக்கப்பட்டது  \begin{aligned}&\frac{b^{2}+3 b-28}{b^{2}+4 b+4} \div \frac{b^{2}-49}{b^{2}-5 b-14}\\\end{aligned}

\begin{aligned}&b^{2}+3 b-28 \Rightarrow(b+7)(b-4)\\&b^{2}+4 b+4 \Rightarrow(b+2)(b+2)\\&b^{2}-49=b^{2}-7\\&=(b+7)(b-7)\end{aligned}

b^{2}-5 b-14 \\\Rightarrow(b-7)(b+2)

\therefore \frac{b^{2}+3 b-28}{b^{2}+4 b+4}+\frac{b^{2}-49}{b^{2}-5 b-14}  

=\frac{(b+7)(b-4)}{(b+2)(b+2)}+\frac{(b+7)(b-7)}{(b-7)(b+2)}  

=\frac{(b+7)(b-4)}{(b+2)(b+2)} \times \frac{(b+7)(b-7)}{(b-7)(b+2)}  

=\frac{(b-4)}{(b+2)}

விடை:   \frac{(b-4)}{(b+2)}

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